25 Teeth Sprocket 1/4" Pitch, 10 x 9mm Bore Carbon Steel with Set Screws 8x14x10mm Universal Joint Top Hole Diameter:

Universal Joint Top Hole Diameter: 3

no CT needed

dual ball bearing

48 AA Battery Box Size: 175mm x 115mm x 32mm / 6

38 Inch (L*W)

25 Teeth Sprocket 1/4" Pitch, 10 x 9mm Bore Carbon Steel with Set Screws 8x14x10mm Universal Joint Top Hole Diameter:Features: 1. Chain Sprockets are normally mounted in a fixed position on a fixed shaft. D inner hole with 2pcs Set Screws at 90 degrees. The shaft can be fixed well, which is convenient to use. 2. The chain sprocket should not rotate at a greater speed than is allowable for drive sprockets of the same size. Every roller chain sprocket comes with strong teeth that can latch onto the chain. It is suggested that chain sprockets have at least three teeth